Invention Grant
- Patent Title: Nonvolatile semiconductor memory device
- Patent Title (中): 非易失性半导体存储器件
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Application No.: US12929384Application Date: 2011-01-20
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Publication No.: US08416602B2Publication Date: 2013-04-09
- Inventor: Makoto Kitagawa , Tsunenori Shiimoto , Tomohito Tsushima
- Applicant: Makoto Kitagawa , Tsunenori Shiimoto , Tomohito Tsushima
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2010-030528 20100215
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A nonvolatile semiconductor memory device includes: a memory element in which a rate of charge discharge between two electrodes of the memory element differs according to a logical value of stored information; cell wiring connected to one electrode of the memory element; a sense amplifier having a sense node connected to the cell wiring, the sense amplifier reading the logical value of the information by comparing a potential of the sense node with a reference potential; and a readout control circuit capable of switching between a dynamic sense operation performing readout by precharging the cell wiring and discharging or charging the cell wiring via the memory element and a static sense operation performing readout in a state of a current load being connected to the sense node.
Public/Granted literature
- US20110199812A1 Nonvolatile semiconductor memory device Public/Granted day:2011-08-18
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